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97 lines
2.5 KiB
Go
97 lines
2.5 KiB
Go
package handler
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import (
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"context"
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"net/http"
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"net/http/httptest"
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"testing"
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"github.com/stretchr/testify/assert"
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ztrace "github.com/zeromicro/go-zero/core/trace"
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"github.com/zeromicro/go-zero/rest/chain"
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"go.opentelemetry.io/otel"
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"go.opentelemetry.io/otel/propagation"
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"go.opentelemetry.io/otel/trace"
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)
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func TestOtelHandler(t *testing.T) {
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ztrace.StartAgent(ztrace.Config{
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Name: "go-zero-test",
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Endpoint: "http://localhost:14268/api/traces",
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Batcher: "jaeger",
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Sampler: 1.0,
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})
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defer ztrace.StopAgent()
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for _, test := range []string{"", "bar"} {
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t.Run(test, func(t *testing.T) {
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h := chain.New(TracingHandler("foo", test)).Then(
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http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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ctx := otel.GetTextMapPropagator().Extract(r.Context(), propagation.HeaderCarrier(r.Header))
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spanCtx := trace.SpanContextFromContext(ctx)
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assert.True(t, spanCtx.IsValid())
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}))
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ts := httptest.NewServer(h)
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defer ts.Close()
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client := ts.Client()
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err := func(ctx context.Context) error {
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ctx, span := otel.Tracer("httptrace/client").Start(ctx, "test")
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defer span.End()
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req, _ := http.NewRequest("GET", ts.URL, nil)
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otel.GetTextMapPropagator().Inject(ctx, propagation.HeaderCarrier(req.Header))
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res, err := client.Do(req)
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assert.Nil(t, err)
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return res.Body.Close()
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}(context.Background())
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assert.Nil(t, err)
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})
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}
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}
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func TestDontTracingSpanName(t *testing.T) {
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ztrace.StartAgent(ztrace.Config{
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Name: "go-zero-test",
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Endpoint: "http://localhost:14268/api/traces",
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Batcher: "jaeger",
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Sampler: 1.0,
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})
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DontTraceSpan("bar")
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for _, test := range []string{"", "bar", "foo"} {
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t.Run(test, func(t *testing.T) {
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h := chain.New(TracingHandler("foo", test)).Then(
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http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
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spanCtx := trace.SpanContextFromContext(r.Context())
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if test == "bar" {
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assert.False(t, spanCtx.IsValid())
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return
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}
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assert.True(t, spanCtx.IsValid())
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}))
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ts := httptest.NewServer(h)
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defer ts.Close()
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client := ts.Client()
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err := func(ctx context.Context) error {
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ctx, span := otel.Tracer("httptrace/client").Start(ctx, "test")
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defer span.End()
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req, _ := http.NewRequest("GET", ts.URL, nil)
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otel.GetTextMapPropagator().Inject(ctx, propagation.HeaderCarrier(req.Header))
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res, err := client.Do(req)
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assert.Nil(t, err)
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return res.Body.Close()
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}(context.Background())
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assert.Nil(t, err)
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})
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}
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}
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